제출 #153888

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
153888		arnold518	JOI 문장 (JOI14_ho_t1)	C++14	100 / 100	94 ms	2364 KiB

2014_ho_t1

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1000;

int N, M, ans;
char S[MAXN+10][MAXN+10], T[3][3];

int chk(int y, int x)
{
    int i, j;
    for(i=0; i<2; i++) for(j=0; j<2; j++) if(S[y+i][x+j]!=T[i][j]) return 0;
    return 1;
}

int main()
{
    int i, j;

    scanf("%d%d", &N, &M);
    for(i=1; i<=N; i++) scanf("%s", S[i]+1);
    for(i=0; i<2; i++) scanf("%s", T[i]);

    int cnt=0;
    for(i=1; i<=N; i++) for(j=1; j<=M; j++) cnt+=chk(i, j);
    ans=cnt;

    for(i=1; i<=N; i++) for(j=1; j<=M; j++)
    {
        char t=S[i][j];
        cnt-=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        S[i][j]='J';
        cnt+=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        ans=max(ans, cnt);

        cnt-=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        S[i][j]='O';
        cnt+=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        ans=max(ans, cnt);

        cnt-=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        S[i][j]='I';
        cnt+=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        ans=max(ans, cnt);

        cnt-=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
        S[i][j]=t;
        cnt+=chk(i-1, j-1)+chk(i-1, j)+chk(i, j-1)+chk(i, j);
    }
    printf("%d", ans);
}

컴파일 시 표준 에러 (stderr) 메시지

2014_ho_t1.cpp: In function 'int main()':
2014_ho_t1.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &N, &M);
     ~~~~~^~~~~~~~~~~~~~~~
2014_ho_t1.cpp:25:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(i=1; i<=N; i++) scanf("%s", S[i]+1);
                         ~~~~~^~~~~~~~~~~~~~
2014_ho_t1.cpp:26:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(i=0; i<2; i++) scanf("%s", T[i]);
                        ~~~~~^~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70